diff --git a/.gitignore b/.gitignore
index c6f9a44..247a308 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-.vscode/settings.json
+.vscode/*
+*/__pycache__/*
diff --git a/UI/grid.py b/UI/grid.py
index 1ff7fbc..4280f79 100644
--- a/UI/grid.py
+++ b/UI/grid.py
@@ -1,34 +1,47 @@
-import pygame
+import pygame as pg
+import numpy as np
 
 
 class Grid:
-    def __init__(self, game):
-        self.game = game
-        self.length = self.game.screen_res[0]/15
-        self.width = (self.game.screen_res[1]/15)-3
+    # define rectangles dimensions
+    r_width = 20
+    r_height = 20
+    r_margin = 5
 
-        self.nodes = [[Node(self, [row, col + 3]) 
-                      for row in xrange(self.length)]
-                      for col in xrange(self.width)]
+    # define some basic colors
+    # TODO: change to Enum
+    BLACK = (0, 0, 0)
+    WHITE = (255, 255, 255)
+    GREEN = (0, 255, 0)
+    RED = (255, 0, 0)
+    BLUE = (0, 0, 255)
 
+    def __init__(self, cols, rows):
+        self.table = np.zeros(shape=(rows, cols), dtype=int)
+        self.cols = list(range(cols))
+        self.rows = list(range(rows))
 
-class Node:
-    def __init__(self, grid, pos):
-        self.grid = grid
-        self.game = self.grid.game
+    def draw_map(self, screen):
+        screen.fill(self.BLACK)
+        for col in self.cols:
+            for row in self.rows:
+                self.draw_node(screen, row, col)
 
-        self.pos = pos
-        self.blit_pos = [i*15 for i in self.pos]
-        self.color = [0, 0, 0]
+    def draw_node(self, screen, row, col):
+        if self.table[row][col] == 0:
+            color = self.GREEN
+        elif self.table[row][col] == 1:
+            color = self.RED
+        elif self.table[row][col] == 2:
+            color = self.BLUE
+        # rect -> (left, top, width, height)
+        # draw.rect(surface, color, rect, margin)
 
-        self.image = pygame.Surface((15, 15))
+        pg.draw.rect(screen, color,
+                     ((col * (self.r_width + self.r_margin)) + self.r_margin,
+                      (row * (self.r_height + self.r_margin)) + self.r_margin,
+                      self.r_width, self.r_height))
+        pg.display.flip()
 
-        self.rect = self.image.get_rect(topleft=self.blit_pos)
-
-        self.solid = 0
-        self.in_path = False
-        self.checked = False
-
-    def fill(self, screen):
-        self.image.fill(self.color)
-        screen.blit(self.image, self.rect)
+    def change_field(self, row, col, field_type):
+        self.table[row][col] = field_type
diff --git a/UI/window.py b/UI/window.py
new file mode 100644
index 0000000..f445ab0
--- /dev/null
+++ b/UI/window.py
@@ -0,0 +1,40 @@
+import pygame as pg
+import time
+from pygame.locals import *
+from UI.grid import Grid
+
+
+class Window():
+    def __init__(self, grid):
+        pg.init()
+        # setup window
+        pg.display.set_caption('Inteligentna śmieciarka')
+
+        self.grid = grid
+        # assign to variables for brevity
+        cols = len(self.grid.cols)
+        rows = len(self.grid.rows)
+        width = self.grid.r_width
+        height = self.grid.r_height
+        margin = self.grid.r_margin
+
+        screen_width = cols * (width + margin) + 2 * margin
+        screen_height = rows * (height + margin) + 2 * margin
+
+        self.screen = pg.display.set_mode([screen_width, screen_height])
+
+        self.end = False
+
+        self.clock = pg.time.Clock()
+        grid.change_field(0, 0, 1)
+        grid.change_field(19, 19, 2)
+        path = [(i, i) for i in range(1, 20, 1)]
+        self.grid.draw_map(self.screen)
+        for t in path:
+            x, y = t
+            self.grid.change_field(x-1, y-1, 0)
+            self.grid.change_field(x, y, 1)
+            self.grid.draw_node(self.screen, x - 1, y - 1)
+            self.grid.draw_node(self.screen, x, y)
+            pg.time.delay(500)
+        pg.quit()
diff --git a/main.py b/main.py
index 6f1e968..5fc14de 100644
--- a/main.py
+++ b/main.py
@@ -1,11 +1,15 @@
-import pygame
+import pygame as pg
+import numpy as np
+
+from UI.grid import Grid
+from UI.window import Window
 
 
 def main():
-    pygame.init()
-    # Define screen size tuple
-    size = width, height = 1200, 900
-    screen = pygame.display.set_mode(size)
+    # initialize grid
+    grid = Grid(20, 20)
+    # initialize window
+    window = Window(grid)
 
 
 if __name__ == "__main__":